Curtain or shade roller



J. ALLEN. GURTAIN 0R SHADE ROLLER.

Patented July 22, 1884.

, [fans/250m -Jo'a'a/L @5661?,

u. Pavansfmefrmmpw. waning n. c4

(No Model.)

Nrr rares 'artnr CURTAIN OR SHADE ROLLER.

SPECIFICATION forming part of Letters Patent No. 302,372, dated July 22, 1884.

Application filed May i7, 1884.

lo. @ZZ whom it may concern:

Be it known that I, JosIilr-r ALLEN, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Curtain or Shade Rollers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the saine,` reference being had to the accompanying drawings, and to letters of reference niarked thereon, which forni a part. of l his specification.

This invention relai es to that class of springactuated curtain or shade rolle-rs known as slow catch rollers, or those in which the roller is caught wheiinioving at a slow rate of speed, the object of ihe invention being to reduce the cost ol' construction, lessen the noise produced by the revolving roller, increase the strength and durability of the device, and to provide a more secure catch.

The inventionconsists in the arrangements and combinations of parts, substantially as will be hereinafter set forth, and finally einbodied in the clauses of the claim.

Referring to the accompanying drawings, in

its bracket and having a certain ferrule removed therefrom. Fig. 2 is a similar view showing the pawls in achanged relation to the spindle. Fig. 3 is a section through line x, Fig. 1, the said ferrule being in place. Fig. 4 is a perspective view of the pawl, Fig. 5 is a detail view of an end piece to be attached to the roller. Fig. Gis a perspective view ofthe spindle; and Fig. 7 is a sectional view taken through line y, Fig. 5.

In said drawings, a.Y indicates the roller; b, the spindle arranged therein, and c the spring connecting said roller and spindle in the usual way. Upon the end of said roller is secured an end piece or casting, d, havinglugs @,which cause said casting or piece to revolve with said roller. The said end piece is centrally perforated, as at f, to receive the spindle b, and the outer face of said piece d is recessed and grooved, rst by forming an annular recess, g, adapted to receive a collar on the spindle, and to forni a space between the said col- (No model.)

lar and the wall h of said recess to allow an entrance to a certain safety projection on the pawl. The face of said end piece is also recessed or slotted radially, as at z' i, to receive sliding pawls or detents jj, of peculiar construction and action. The ends of the said slots i rtoward the periphery of the end piece are enlarged, as at k, to receive cross-heads l of the said pawls, and to furnish bearings for one of thelateral proj ectionsof the same when the said pawlis being drawn from holding contact with the spindle. Said pawlsj j are provided with the before-mentioned cross-heads Z Z, which lie in the broadened or enlarged portions k k, and safety projections m, which are formed at the side of each of said pawls near ihe inner end thereof, and are adapted to enter the recess g between the spindle and wall h, and thereby act as preventives against accidental disengagement, it being understood that ordinarily the power of the spring isA sufficient to hold the spindle, pawl, and roller stationary in their relations to one another.

The spindle b is made with the usual flattened or angular outer extremity, a, and back of this is formed a collar or annular flange, o', provided with notches p, to receive the inner ends of the pawls or detents. Said collar works in the recess g, and brings the holdingnotches nearer the periphery of the roller, so that a shorter pawl may be used with advantage. The end piece and pawls are held in position on the roller by the ferrule o", having a turned outer edge, s, which covers the face of the recessed end piece and holds all the parts intact.

The operation of the deviceis substantially as follows: The pawl being in holding engagement with the notched collar, as shown in Fior. 1, the roller and end piece, d, are revolved by drawing down the window-shade, causing the pawl to be drawn laterally in its relation to the radial slots, as shown in Fig. 2, and out of the notch in the spindle, one of the projections of the cross-head catching or bearing on the bottom of the enlargement 7c, and the wall 7L being cut away, as at h', to cause and allow such lateral action. A quick movement of the curtain-roll causes the pawls to remain by lcentrifugal force free of the spindle, so that a smooth and coinparativelynoiseless lmovement is obtained.

IOO

By the construction described the sliding pawl is drawn by positive mechanical means from holding engagement with the notched hub or spindle. In this my improved device is distinguished from other devices in this class of rollers, the pawls of which depend on gravity alone to draw them from the engaging line ol' the spindle.

I-Iaving thus described the invention, what I claim as new isl. In a shade-roller, the end pieee having p the Wall 7L, the sliding paWl having the lateral projections m, and the notch ed spindle, a recess, 1], being formed between said spindle and wall, all said parts being arranged and operating substantially as set forth. 'f

2. In combination, ina shade-roller, the end prec 3 having the central perforation, f, annular recess y, radial recesses '11, and enlargements 7:, the sliding pawls Working in said recesses i, having heads lying in said enlargements, and safety projections adapted to enter the recess g, and a spindle, all said parts being arranged and operating substantially as and for the purposes set forth.

In combination, ina cnrtainroller,a perforatedend piece having the Wall h and radial recess or slot z', a notched spindle arranged in said end piece, a space or opening, g, being between said wall and spindle,and a pawl operating in said slot engaging the notch in the spindle, and having a lateral proj eetion adapted to enter said openingg, all substantially as herein set forth and shown.

4f.. In a curtain-roller, the combination ofthe end piece having a radial slot orreeess enlarged toward the periphery thereof, and a recess, g, near the spindleto allow a lateral movement of the pawl, a notched spindle and a pawl Working in said radial slot, having a head Working in the enlarged portion thereof, the end of said pawl opposite said head engaging said spindle and allowed a lateral movement as respects the end piece by said recess or opening g, substantially as and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 15th day ol May, 1884.

JOSIAII ALLEN.

Vitnesses:

CrrAnLns H. PELL, F. Il, CAMPBELL. 

